Integrative omics analysis on phytohormones involved in oil palm seed germination

Yong, Wang; Htwe, Yin Min; Li, Jing; Shi, Peng; Zhang, David; Zhao, Zhihao; Ihase, Leonard Osayande

doi:10.1186/s12870-019-1970-0

Cited by 22 publications

(22 citation statements)

References 33 publications

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“…As such, α-tocopherol is probably an important actor to down-regulate lipid peroxidation at the very first steps of palm seed germination, just after imbibition. In fact, across different palm species, just after imbibition, there is a peak in H 2 O 2 that seems to coincide with that in JA and α-tocopherol content [ 35 , 51 , 52 ].…”

Section: Ros Metabolismmentioning

confidence: 99%

“…Hormonal profiling of germinating oil palm seeds has shown that several hormones vary in the first days, not only gibberellins, which only show a small increase [ 65 ]. The most visible events are a strong decrease in abscissic acid and a modest increase in auxin [ 52 , 66 ]. The decrease in abscissic acid (and its antagonism with gibberellins) is not surprising, since it is an essential component of dormancy breaking in mixed physical-physiological dormant seeds [ 53 , 67 ].…”

Section: Control Of Germinationmentioning

confidence: 99%

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Seed Germination in Oil Palm (Elaeis guineensis Jacq.): A Review of Metabolic Pathways and Control Mechanisms

Cui

Lamade

Tcherkez

2020

IJMS

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Oil palm is an oil-producing crop of major importance at the global scale. Oil palm mesocarp lipids are used for myriads industrial applications, and market demand has been growing for decades. In addition, oil palm seeds are oleaginous, and the oil extracted therefrom can be used for several purposes, from food to cosmetics. As such, there is a huge need in oil palm seeds to maintain the global cohort of more than 2 billion trees. However, oil palm seed germination is a rather difficult process, not only to break dormancy, but also because it is long and often reaches lower-than-expected germination rates. Surprisingly, despite the crucial importance of germination for oil palm plantation management, our knowledge is still rather limited, in particular about germinating oil palm seed metabolism. The present review incorporates different pieces of information that have been obtained in the past few years, in oil palm and in other palm species, in order to provide an overview of germination metabolism and its control. Further insights can also be gained from other oleaginous model plants, such as Arabidopsis or canola, however, palm seeds have peculiarities that must be accounted for, to gain a better understanding of germinating seed metabolism.

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Section: Ros Metabolismmentioning

confidence: 99%

Section: Control Of Germinationmentioning

confidence: 99%

Seed Germination in Oil Palm (Elaeis guineensis Jacq.): A Review of Metabolic Pathways and Control Mechanisms

Cui

Lamade

Tcherkez

2020

IJMS

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“…However, the effect of heat treatment on phytohormone-related genes/ proteins/metabolites and possible relationship with dormancy release is not well understood. Wang et al (2019) carried out integrative omics analysis on the phytohormones involved in oil palm seed germination under conditions used for commercial production to discover the mechanisms involved in oil palm seed germination. Differentially expressed genes and proteins (DEG and DEP) related to seed germination were identified using RNA-seq and isobaric tags for relative and absolute quantitation (iTRAQ) and the results validated with qPCR and western blot.…”

Section: Integrative Omics For Understanding Oil Palm Seed Germinationmentioning

confidence: 99%

Omics Platform Technologies for Discovery and Understanding the Systems Biology of Oil Palm

Ramli¹

2020

JOPR

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Palm oil is the leading vegetable oil in terms of volume in the world market. Indonesia and Malaysia are the top producers and exporters of the commodity. The global production of palm oil reached 73.5 million tonnes in the period 2018/2019, up from approximately 70.5 million tonnes in 2017/2018. Oil palm is the most productive crop in the world being 10 times more productive than soyabean which produces only about 0.45 t oil per hectare. Nonetheless, the industry is continuously under pressure to improve productivity and sustainability. This will require concerted innovations across the entire palm oil supply chain and fully committed research efforts including upstream technologies to expedite crop improvement. At the Malaysian Palm Oil Board (MPOB), research efforts at development of tools for improving oil palm traits by genetic modification have been augmented more recently with omics-based approaches and all of these innovations are synchronised towards improved product quality. Omics is a multidisciplinary field encompassing genomics, epigenomics, transcriptomics, proteomics and metabolomics. Each of these fields provides an opportunity to understand and view oil palm biology from a global perspective, enabling accelerated discoveries for improved productivity and the development of new and improved varieties. An integrative omics approach promises great value in both phenotyping and diagnostic analyses. With the current technological capabilities, metabolomics is also being exploited for identifying unique chemical fingerprints to detect product contamination and adulteration in oil palm. This effort is actively being conducted in order to position the oil palm industry to meet and optimise the delivery of the highest quality oil with minimum environmental and social concerns. In this review, an overview is given on the current knowledge and progress made in oil palm research, focusing on the application of omics strategies and their integration with high-throughput technologies for oil palm crop improvement, development of geographical traceability system and ensuring that palm oil is free from residual oil contamination.

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“…The concentration of the endogenous phytohormones involving gibberellin A1 (GA 1 ), gibberellin A3 (GA 3 ), gibberellins A4 (GA 4 ), cytokinin (CTK), abscisic acid (ABA), indole-3-acetic acid (IAA) during seed germination was determined by LC-MS/MS system (Qin et al, 2019;Wang et al, 2019) with slight modifications. Each sample was transferred into a 2 mL LC/MS glass vial for LC-MS/ MS analysis.…”

Section: Determination Of Phytohormone Contentmentioning

confidence: 99%

Overexpression of Maize ZmMYB59 Gene Plays a Negative Regulatory Role in Seed Germination in Nicotiana tabacum and Oryza sativa

Zhai¹,

Zhao²,

Jiang³

et al. 2020

Front. Plant Sci.

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MYB transcription factors are involved in many biological processes, including metabolism, stress response and plant development. In our previous work, ZmMYB59 was down-regulated by deep sowing during maize seed germination. However, there are few reports on seed germination regulated by MYB proteins. In this study, to examine its functions during seed germination, Agrobacterium-mediated transformation was exploited to generate ZmMYB59 overexpression (OE) tobacco and rice. In T 2 generation transgenic tobacco, germination rate, germination index, vigor index and hypocotyl length were significantly decreased by 25.0-50.9, 34.5-54.4, 57.5-88.3, and 21.9-31.3% compared to wild-type (WT) lines. In T 2 generation transgenic rice, above corresponding parameters were notably reduced by 39.1-53.8, 51.4-71.4, 52.5-74.0, and 28.3-41.5%, respectively. On this basis, antioxidant capacity and endogenous hormones were determined. The activities of catalase, peroxidase, superoxide dismutase, ascorbate peroxidase of OE lines were significantly lower than those of WT, suggesting that ZmMYB59 reduced their oxidation resistance. As well, ZmMYB59 overexpression extremely inhibited the synthesis of gibberellin A1 (GA 1) and cytokinin (CTK), and promoted the synthesis of abscisic acid (ABA) concurrently. Taken together, it proposed that ZmMYB59 was a negative regulator during seed germination in tobacco and rice, which also contributes to illuminate the molecular mechanisms regulated by MYB transcription factors.

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Integrative omics analysis on phytohormones involved in oil palm seed germination

Cited by 22 publications

References 33 publications

Seed Germination in Oil Palm (Elaeis guineensis Jacq.): A Review of Metabolic Pathways and Control Mechanisms

Seed Germination in Oil Palm (Elaeis guineensis Jacq.): A Review of Metabolic Pathways and Control Mechanisms

Omics Platform Technologies for Discovery and Understanding the Systems Biology of Oil Palm

Overexpression of Maize ZmMYB59 Gene Plays a Negative Regulatory Role in Seed Germination in Nicotiana tabacum and Oryza sativa

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